Remove custom SkVertices data and runtime effect `varying` support
This was an experimental feature. It worked (but only the GPU backend).
It was never adopted or used by anyone, to my knowledge. It's a large
amount of code, and a strange corner of SkSL for users to stumble into.
Reviewed-by: Mike Reed <email@example.com>
Commit-Queue: Brian Osman <firstname.lastname@example.org>
28 files changed